Program identifiers use exact matches. The analogy works fine understanding this context. It's possible to extend any analogy in a way that doesn't make sense,

Program identifiers use exact matches. The analogy works fine understanding this context. It's possible to extend any analogy in a way that doesn't make sense, which is what you've done. It seems like your complaint may be that you simply don't like, or perhaps don't understand, analogies in general.